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    Via

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    The Via general header is added by proxies, both forward and reverse proxies, and can appear in the request headers and the response headers. It is used for tracking message forwards, avoiding request loops, and identifying the protocol capabilities of senders along the request/response chain.

    Header type General header
    Forbidden header name yes

    Syntax

    Via: [ <protocol-name> "/" ] <protocol-version> <host> [ ":" <port> ]
or
Via: [ <protocol-name> "/" ] <protocol-version> <pseudonym>

    Directives

    <protocol-name>
    Optional. The name of the protocol used, such as "HTTP".
    <protocol-version>
    The version of the protocol used, such as "1.1".
    <host> and <port>
    Public proxy URL and port.
    <pseudonym>
    Name/alias of an internal proxy.

    Examples

    Via: 1.1 vegur
Via: HTTP/1.1 GWA
Via: 1.0 fred, 1.1 p.example.net

    Specifications

    Specification Title
    RFC 7230, section 5.7.1: Via Hypertext Transfer Protocol (HTTP/1.1): Message Syntax and Routing

    Browser compatibility

    Feature Chrome Edge Firefox Internet Explorer Opera Safari Servo
    Basic Support(Yes)(Yes)(Yes)(Yes)(Yes)(Yes)(Yes)
    Feature Android Chrome for Android Edge Mobile Firefox for Android IE Mobile Opera Mobile Safari Mobile
    Basic Support(Yes)(Yes)(Yes)(Yes)(Yes)(Yes)(Yes)

    See also

    Etiquetas y colaboradores del documento

    Etiquetas: 
     Colaboradores en esta página: fscholz
     Última actualización por: fscholz,